I'm not here for help. I have tried everything suggested in several threads to keep IPv6 up and working on my RBR850 with my Xfinity connection. The modem is a Netgear CM2000.Included in what I have tried is two other mesh router systems from Asus and TP-Link and IPv6 support is rock solid on both and do not give me "not available" messages when the IP is renewed by the ISP. Please do not suggest I try anything except fixed firmware for my otherwise great RBR850 system.

I am also able to get a IPv6 address but as soon as it's renewed by Comcast the IP is lost and I'm told that IPv6 is "not available.". That could be an hour or five days, but eventually IPv6 is lost.

I'd agree, it is broken right now. My SXK30 it was perfect on. The orbi 9 series I have, it can't keep a solid connection. A bit of a disappointment.

Just to clarify. Everything else on my 850 system works just great. It's only that I can't get IPv6 to work. Well, with several reboots and settings toggles I get IPv6 for a few hours! 🙂

I have been through this many times but I use Autodetect and mostly I then get 6 to 4 Tunnel (which isn't really IPv6) but sometimes I get DHCP which it should be. But after an hour or so I lose IPv6 connection and when I check it says that IPv6 is not available. If I toggle on an off several times I may get DHCP again which last for an hour or so.I am pretty sure it's lost when the IP is being renewed (DHCPv6) by Comcast.

Mine's the same. It'll connect and work for a few hours and then it craps out. A bit sad.

When will Netgear fix it's IPv6 problem?

13 Replies

plemans
Guru
Nov 19, 2022
I'd agree, it is broken right now.

My SXK30 it was perfect on. The orbi 9 series I have, it can't keep a solid connection.

A bit of a disappointment.
- cdysthe
  Virtuoso
  Nov 19, 2022
  Just to clarify. Everything else on my 850 system works just great. It's only that I can't get IPv6 to work. Well, with several reboots and settings toggles I get IPv6 for a few hours! 🙂
  - plemans
    Guru
    Nov 21, 2022
    Mine's the same. It'll connect and work for a few hours and then it craps out. A bit sad.
iyang
NETGEAR Expert
Nov 24, 2022
Hi cdysthe ,

Can we know what's ipv6 mode (dhcp, pppoe, auto detect...) do you use ?

Thanks.
- cdysthe
  Virtuoso
  Nov 24, 2022
  I have been through this many times but I use Autodetect and mostly I then get 6 to 4 Tunnel (which isn't really IPv6) but sometimes I get DHCP which it should be. But after an hour or so I lose IPv6 connection and when I check it says that IPv6 is not available. If I toggle on an off several times I may get DHCP again which last for an hour or so.
  
  I am pretty sure it's lost when the IP is being renewed (DHCPv6) by Comcast.
FURRYe38
Guru
Dec 01, 2022
New FW is available:

https://community.netgear.com/t5/Orbi-WiFi-6-AX-and-WiFi-6E-AXE/New-RBR850-RBS850-Firmware-Version-4-6-14-3-Released/td-p/2276311/jump-to/first-unread-message

cdysthe wrote:
I'm not here for help. I have tried everything suggested in several threads to keep IPv6 up and working on my RBR850 with my Xfinity connection. The modem is a Netgear CM2000.

Included in what I have tried is two other mesh router systems from Asus and TP-Link and IPv6 support is rock solid on both and do not give me "not available" messages when the IP is renewed by the ISP. Please do not suggest I try anything except fixed firmware for my otherwise great RBR850 system.
- cdysthe
  Virtuoso
  Dec 02, 2022
  Thanks The download link for the router FW 4.6.14.3 doesn't work. The one for the satellite does.
  - FURRYe38
    Guru
    Dec 02, 2022
    Try this link again...it just worked for me.
FarmerBob1
Luminary
Dec 07, 2022
On my RBK853 during 4.6.9.14 and now for the time, since Saturday with 4.6.14.3, I have gotten IPv6. My ISP is Centurylink with the RBR connect to the ONT directly and all login and settings are on the RBR.
- FURRYe38
  Guru
  Dec 07, 2022
  FarmerBob1 Let us know the duration your seeing with your system and ISP service and if you see any interruptions.
  - cdysthe
    Virtuoso
    Dec 07, 2022
    I am also able to get a IPv6 address but as soon as it's renewed by Comcast the IP is lost and I'm told that IPv6 is "not available.". That could be an hour or five days, but eventually IPv6 is lost.

Forum Discussion

When will Netgear fix it's IPv6 problem?